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  3. [originaltext]Water PollutionToday most water sources are so dirty that people

[originaltext]Water PollutionToday most water sources are so dirty that people

游客2023-10-26  65
问题  
Water Pollution
Today most water sources are so dirty that people must purify water before drinking. Water becomes dirty in many ways: industrial pollution is one of them. With the development of industry, plants and factories pour tons of industrial wastes into rivers every day. The rivers have become seriously polluted, and the water is becoming unfit for drinking or irrigation. The same thing has also happened to our seas and oceans. Scientists of many countries have done a lot of work to stop pollution. Perhaps one day the people in all towns and cities will be drinking clean water.
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答案 Water Pollution
Today most water sources are so dirty that people must purify water before drinking. Water becomes dirty in many ways: industrial pollution is one of them. With the development of industry, plants and factories pour tons of industrial wastes into rivers every day. The rivers have become seriously polluted, and the water is becoming unfit for drinking or irrigation. The same thing has also happened to our seas and oceans. Scientists of many countries have done a lot of work to stop pollution. Perhaps one day the people in all towns and cities will be drinking clean water.
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